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A box of mass 1.1 kg slides down a frictionless slope and is stopped by a horizontal spring with a spring constant of k = 3100 N/m. The box changes height by a distance of 0.78 m during this process. If the box had an initial speed of 0.62 m/s, use conservation of energy to calculate
a) The compression in the spring, when the box comes to a halt
b) If 6.5J of work was done by friction as the box slides down the slope, what would be the compression in the spring?
Violet light and red light travel through air and strike a block of plastic at the same angle of incidence, find the index of refraction for violet light in plastic
A copper pipe with an outer radius of 0.013 m runs from an outdoorwall faucet into the interior of a house. Find the inner radius of the pipe
An airplane traveling at half the speed of sound emits a sound of frequency 5.45 kHz. At what frequency does a stationary listener hear the sound
A thin homogeneous triangular plate of mass 2.5 kg is welded to a light vertical axle supported by bearings at A and B. Knowing that the plate rotates at the constant rate ω = 8 rad/s, determine the dynamic reactions at A and B.
Based on this information and what you learned in this chapter about the action potential, estimate the total number of sodium ion channels in the membrane of a nerve cell
A swimmer heads directly across a river, swimming at 1.9 m/s relative to the water. She arrives at a point 34 m downstream from point directly across the river, which is 80 m wide.
A diver is completing a double back somersault. The first somersault is done in the layout position at 300 degree/sec, Find what is his angular velocity in the tuck position
A wall is composed of two materials. Material 1 has a thickness of 3.31 centimeter and a thermal conductivity of 0.1 while material 2 has a thickness of 6.58 centimeter and a conductivity of 1. find the energy loss per second to the nearest watt
Draw a PV diagram describing this cycle, with all the information provided. What type of heat engine is this? Find the net work done by the gas.
In asthmatic patients, an increased thickness of the airways causes a local reduction in stress through the airway walls. Calculate the ratio of the shear strain in an asthmatic airway to that of a healthy airway.
water flows through a horizontal pipe of cross-sectional area 10 sq. cm. at one section the cross-sectional area is
Provide equations allowing to find moment of inertia of a solid cylinder and of a cylindrical ring
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